Hoisting-bucket mechanism.



.l. S. MItLER. HOISTING BUCKET MECHANISM. APPLICATION men JUNE 21.1917.

ma ma, Emma Mar. 12, 1918. 3 SHEETS-SHEET I.

l. S. MlLLER. HOlSTlNG BUCKET MECHANISM. APrucAnou HLEDJUNEZI,I91L

Patented Mar. 12, 1918.

3 SHEETS-SHEET 2- WITNESSES 1. S. MILLER. HOISTING HUCKET'MECHANISM.

APPLICATION FILED IUNE 21,1917.

3 SHEETS-SHEET 3'.

Patented Mar. 12, 1918.

5 8 W 9 10 m 0M 5 M/ m 7 w JAMES SMITH MILLER, OF UNITY STATION,PENNSYLVANIA.

HOISTING-BUCKET MECHANISM.

Specification of Letters Patent. Patented Mar. 12, 1918.

Application filed June 21, 1917. serial No. 176,086.

To all whom it may concern:

Be it known that LJAMES S. MILLER a citizen of the United States,residing at Unity Station, Allegheny county, Pennsylvania, have inventeda new and useful Hoisting-Bucket Mechanism, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification, in whichFigure l is a sectional elevation of hoisting mechanism, embodying myinvention with a hoisting bucket 1n an intermediate position.

F 2 is a similar view with the bucket.

and adjacent parts in dumping positions.

Fig. 3 is a front elevation of the bucket frame and bucket. I

Fig. l is a section on the line IVIV of Fig. 3.

Fig. 5 is a perspective view of the door operating lever of Fig. 4, and

Fig. 6 is a view similar to Fig. 1, but showing a modification.

My invention has relation to hoisting buckets, and to means fordischarging said buckets; and is designed to provide mechanism of thischaracter which can be operated without destructive action upon thetower or guides in which the bucket runs; which will permit the bucketto be discharged without splashing; and, in which the discharge is ofsuch character as to thoroughly flush the bucket at each discharge, andthus prevent clogging thereof.

he particular nature of my invention will be best understood byreference to the accompanying drawings in which I have shown preferredforms thereof, and which will now be described, it being premised,however, that various changes can be made in the details ofconstruction, arrangement, and combination of the various parts withoutdeparting from the spirit and scope of my invention, as defined in theappended claims.

Referring first to that form of my invention shown in Figs. 1 to 5,inclusive the numeral 2 designates the frame work of the tower or guidesupon which the bucket is raised and lowered.

These guides may be, in general, of any usual or suitable character.

The hoisting bucket has a straight front wall 3, a forwardly anddownwardly inclined bottom and rear wall 4, and end walls 5, there beinga door opening 6 be tween the lower edge on the front wall 3 andthelower portion of the wall 4. This opening is controlled by avertically sliding door 7 which is pivotally mounted on one arm of alever 8. This lever is pivoted at 9 to a suitable support or bracket,which is fastened to the frame or carrier 11 of the bucket, the lever 8having a rearwardly projecting arm 12 beyond the pivot 9.

3 designates a guide rod or link which is also pivotally connected tothe door 7 and which extends rearwardly through a guide 14 in a bracket10, in which guide it is loosely seated, being held by the adjustablenuts 15. 16 designates a guiding or discharging trough secured to thebucket. 17 is a receiving hopper mounted on the frame 2 and into whichthe bucket 3 is arranged to discharge.

Pivoted to the upper rear corner portion of the hopper 17 is atrough-like guide 18, having connected to its upward forward cornerportion a rod 19, which extends upwardly and normally rests against oneof the guides 2 of the frame 2 in the path of movement of the upwardlytraveling bucket.

20 is a tripping lug or projection of frame 2.

The operation is as follows: Shortly before the ascending bucket reachesthe position shown in Fig. 2, the arm 12 of the lever 8 comes in contactwith the tripping projection 20, thereby moving said lever 8 to raisethe door to the open position, indicated in Fig. 2. During the openingmovement of the door, it is guided by the rod or link 13, which,swinging from a different center than that of the pivot 9, acts toprevent an binding of the door against the wall of the bucket. At thesame time, by means of the nuts 15, the door may be kept sufiicientlytight, when closed, to prevent leakage of any liquid contents. It willbe understood that the various pivotal connections of the lever 9 anddoor 7 are made sutiiciently loose to permit free action.

At about the same time that the door commences to open, the bucket 3Comes in contact with a projection 19 on the rod 19, thereby moving saidrod to raise the guide 18 to the position, shown in Fig. 2; that is tosay, in the position to receive the discharge from the spout 16 and todirect it into the hopper 17.

The contents of the bucket readily discharge by gravity, owing to theinternal shape of the bucket, and flow out into the hopper 17 with verylittle splashing This discharge is also free from any destructive jars,such as occurs whendunipingan invertible bucket. In handling mixed solidand suchas stock used in con-v charged, leaving the more solid portionsin the bottom of the bucket.

Theform of my invention first described is illustrated in connectionwith a sheet metal bucket. In Fig. 6 I have shown a-modificatioii moreespecially designed for, use in connectionwith a wooden bucket. Theconstruction and moving operation is, in all sub stantial respects thesame as that first described and corresponding parts have been givenpreceding figures with the. letter b affixed thereto.

The advantages of my invention will be apparent to those skilledin theart, since it provides a self discharging-hoisting bucket and efiicientcharacter, requiring of simple little attention-on the part oftheoperator, in the use of which objectional splashing and-jars areeliminated;

Iclaim:

1-. The combination with a hoisting bucket,

Copies 0! this-patent may be obtained for above the solid thesamereference characters as in the engage the lever member,

having a forwardly and downwardly inclined combined bottom and rearwall, and a substantially vertical forward wall, there being a,discharge opening between the lower edge of the forward wall and theadjacent portioiiof the combined bottom and rear wall, a verticallyslidable door normally olosingsa'id opening, a lever member carryingsaid door, and pivoted to the bucket frame, a fixed tripping memberarranged to engage the lever member, and thereby effect the opening ofthe guide member pivotally' connected to the door and having engagementwith the bucket frame; substantiallyas described.

2. The combination with a hoisting bucket, havingforwardly anddownwardly inclined combined bottom and rear wall, aiid a substantiallyvertical forward wall, being adischarge opening between the lower edgeof the wall, a vertically closing said opening, a lever member carrying]said door, and pivoted tothe bucket frame, afixedtripping memberarranged to the opening of the door, guide member pivotally connected tothe door and having engagement with the bucket frame at a point whichiseccentric with respect to the center OfIHQVQH'lGHt of the lever member;substantially asdescribed;

In testimony whereof, I have hereunto set my hand;

' JAMES SMITH: MILLER.

wasmngtomb; 0.3.

door, together with a thereforward wall and the adjacent portion of thecombined bottom and, rear slidable door normally and therebyeffecttogether with a

